Metallic packing.



No. 801,960. PATENTED 001?. 17,1905.

J. BADEKBR.

METALLIC PACKING.

APPLICATION FILED JULY 30,1903. RENEWED MAR. 20, 1905.

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JOHN BADFJKER, OF OMAHA, NEBRAS KA, ASS'IGNOR T0 BADEKER METAL- LlC PACKING COMPANY, OF OMAHA, NEBRASKA, A CORPORATION.

METALLIC Application filed July 30,

T 0 all whmn it may concern.-

Be it known that 1, JOHN BADEKER, a citizen of the United States, and a resident of Omaha, in the county of Douglas and State of Nebraska, have invented anew and Improved Metallic Packing, of which the following is a full, clear, and exact description.

This invention relates to a metallic packing designed especially for piston-rods of locomotives, but useful in connection with other rods, as will be understood by skilled mechanics.

The object of the invention is primarily to provide a packing which will be durable and efficient and one which even should any of its parts he fractured, as frequently happens in metallic packings, will serve nevertheless to hold the fractured parts of the packing in proper or active position, so that the packing may be used effectively even after fracture.

The invention resides in certain novel features of construction and arrangement of parts, as will be hereinafter fully set forth.

This specification is a specific description of one form of the invention, while the claims define the precise scope of the invention.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a longitudinal section taken through a stuffing-box and showing my invention applied thereto. Fig. 2 is an inner end elevation of the cup and the packing-segments therein. Fig. 3 is an inner end elevation of the cup and the outer packing-segments, this view showing also the keys on the cup which guide and hold the outer packingsegments. Fig. i is an inner side view of the cup with all of the packing-segments removed. Fig. 5 is across-section on the line 5 5 of Fig. 3, and Fig. 6 is an inner side view of one of the outer packing-segments.

a indicates the cylinder-head, b the stuffingbox, 0 the cap or gland, and (Z the piston-rod, all of which may be considered to be of the usual form.

0 indicates the cup which fits within the box 6 and bears against the inner side of the cap or gland 0, the cup having an outwardly-projecting annular flange a lying in the opening 0 of the cap 0. The cup 0 is formed with an inner surface 0 gradually tapering toward the rod (Z and running into the cylindrical inl Specification of Letters Patent.

1903. Renewed March 20, 1905. Serial No. 251,007

PACKING.

Patented Oct. 17, 1905.

ner diameter of the flange e, which flange fits snugly around the rod d, as shown. Fastened to the tapered inner surface (2 of the cup 6 by means of pins 6 or any other desired means are keys 6*, which are preferably two in number and located diametrically opposite each other, as shown, and having undercut or overhanging side edges. The keys 0 are essentially triangular in form, the keys being radially disposed and tapering outward or toward the small end of the inner surface 6 of the cup.

The inner packing-segments are preferably two in number and are duplicates, each comprising an outer part or body f and an inner or packing part f, the inner part f having its ends extended slightly beyond the outer or body part f. The cup 6 is circular, as shown in Fig. 4; but the body part f of the outer packing-circle, while circular on its exterior surface, properly to engage the inner walls of the cup 6 is eccentric on its inner surface, as illustrated in Figs. 3 and 6. The body parts of the outer segments are set between the keys 0 and are held thereby against all possible turning movement within the cup. The inner parts f of the outer packing-segments overlap the keys, as shown, and said parts f are formed with arc-shaped or concentric inner surfaces arranged to fit snugly against the rod (Z and forming a steam-tight connection therewith. There is provided a clearance between the adjacent ends of the parts f in the outer packing-segments, and it will be observed that as these segments wear they may be contracted on the rod,so as to maintain a tight connection therewith, and in this contracting operation the segments are guided by the keys 0, which serve, therefore, not only to hold the segments in proper position, but

to guide them in their contracting or closing movements. The extremities of the body parts f of the outer packing-section are beveled to correspond with the undercut side edges of the keys 0*, and in assembling the parts the outer segments are slipped into the cup by a movement outward or rightward, as in Fig. 1, longitudinally of the rod.

There are preferably two inner packingsegments g, which have concentric or arcshaped inner surfaces arranged snugly to engage the rod cl and which have eccentric outer surfaces fitting them to set snugly within the long or eccentric form of the parts f space inclosed by the body parts of theouter packing-segments and the inner surfaces of the keys 6, the said space being of eccentric or oblong form, as illustrated in Fig. 2, and theinner sections 5 being set snugly against of the outer segments, so as to break joints therewith. These parts f and 9 form, therefore, the packing proper and by being snugly engaged and overlapped, as described, a thoroughly-steam-tight connection is effected. wears it may be contracted on the rod by forcing the several segments into the cup, all of the various tapered engaging surfaces being formed to correspond with each other, so that this contraction takes place uniformly around the rod. 7t indicates a collar which encircles the rod and bears against the inner packing-segments g and 2', an expansive spiral spring acting between the collar and the cylinder-head a and serving to hold the collar engaged with the segments 9, so that the said parts it and c' act to keep the packing-segments tightly within the cup and to cause them to contract around the rod as they wear away.

This construction forms an absolutely steamtight joint around the rod, and it will be observed that the various packing-segments are so securely held from idle movement within the cup that grinding of the parts against the cup is impossible, and consequently the liability of fracture of the packing-sections is reduced to the minimum. Should this fracture take place, however, the form of the segments and the cup and the engagement of the collar it with the segments are such that the fractured parts will nevertheless be held in place, and the packing may be used even after fracture with almost the same efliciency as when the packing is in its normal position.

It will further be observed in connection with my improved construction that the obthe figure described by the two segments f and the two segments g serves a double purpose-that is to say, this formation serves not only to prevent turning of the segments within the cup, but it also serves to provide an extra mass of material at the middle portions of the segments, at which point the strain on the segments is most severe. Consequently the segments are reinforced liable to occur. The parts f and f of the outer packing-segments are formed integral and are of Babbitt or similar metal, and the inner segments are also formed of Babbitt or some other metal which has similar properties, as will be understood.

Various changes in the form, proportions, and minor details of the invention may be resorted to at will without departing from the spirit and scope thereof. 1 consider myself entitled to all such variations as may lie within the scope of my claims.

At the same time as the packing at the points where fracture is most,

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. Ametallic rod-packing, comprisingacup having a tapered interior, a key secured Within the cup, packing-segments placed in the cup and lying at opposite sides of and having their ends engaged with the key for the purpose specified, and means for yieldingly pressing said segments into place.

2. A metallic rod-packing, comprisinga cup with a tapered interior, a key secured in the cup, outer packing-segments located in the cup and lying at opposite sides of and having their ends engaged with the key, inner packing-segments placed in the outer packing-segments, and means for yieldingly holding the segments in place.

3. Ametallic rod-packing, comprisingacup with a tapered interior, a key secured in the cup, outer packing-segments located in the cup and engaged with the key, inner packingsegments placed in the outer packingsegments, and means for yieldingly holding the segments in place, the outer packing-segments having eccentric surfaces, and the inner packing-segments having correspondingly-formed surfaces to prevent the inner segments from turning within the outer segments.

4:. A metallic rodpacking, comprising a cup, inner and outer sets of packing-segments placed in the cup, said segments having eccentric surfaces formed by increasing the bulk of intermediate portions of the segments for the double purpose of ments from turning one within the other and for strengthening the segments, and'means for yieldingly holding the segments in place.

5. .A metallic rod-packing, comprising a cup with a tapered interior, two oppositelysituated keys fastened to the cup, outer packing-segmentscomprising body portions lying snugly against the inner surface of the cup and engaged with the keys, and also comprising inner portions adapted to engage the rod, inner packing segments placed within the body portions of the outer segments and hearing against the inner portions of the outer segments, and means for holding the segments in place.

6. A metallic rod-packing, comprising a cup with a tapered interior, two oppositelysituated keys fastened to the cup, outer packing-segments comprising body portions lying snugly against the inner surface of the cup and engaged with the keys, and also comprising inner' portions adapted to engage the rod, inner packing segments placed within the body portions of the outer segments and bearing against the inner portions of the outer segments, and means for holding the'segments in place, the inner surfaces of the body portions of the outer segments being eccentric and-the outer surfaces of the inner segments being correspondingly formed for the double purpose described.

preventing the seg- 7 A metallic rod-packing, comprising a cup with a tapered interior, two oppositelysituated keys fastened to the cup, outer packing-segments comprising body portions lying snugly against the inner surface of the cup and engaged with the keys, and also comprising inner portions adapted to engage the rod, inner packing-segments placed within the body portions of the outer segments and hearing against the inner portions of the outer segments, and means for holding the segments in place, the said keys being tapered toward the small diameter of the cup, and the ends of the body portions of the outer packing-segments being correspondingly formed for the purpose specified.

8. A metallic rod-packing, comprising a cup having a tapered interior, a key projecting from the inner wall of the cup, and tapered toward the smaller diameter thereof, packingsegments placed in the cup and lying at opposite sides of and having diagonal end surfaces respectively engaged with the tapered side edge of the key, for the purpose specified, and means for holding the segments in active position.

9. A metallic rod-packing, comprising a cup havinga tapered interior, a key projecting from the same outward, packing-segments located in the cup and engaged with the key to hold said'segments from turning in the cup, inner packing-segments inclosed by the outer packing-segments, the inner and outer segments having interengaged surfaces to prevent the inner segments from turning within the outer segments, and means for holding all of the segments in place.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

JOHN BADEKER.

Witnesses:

HOWARD J. CoweILL, D. O. BARNELL. 

